CN210262509U - Asymmetric welding formula of I-shaped rail three throw switch alloy steel fork heart - Google Patents
Asymmetric welding formula of I-shaped rail three throw switch alloy steel fork heart Download PDFInfo
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- CN210262509U CN210262509U CN201920949853.8U CN201920949853U CN210262509U CN 210262509 U CN210262509 U CN 210262509U CN 201920949853 U CN201920949853 U CN 201920949853U CN 210262509 U CN210262509 U CN 210262509U
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Abstract
The utility model discloses an asymmetric welding formula of I-shaped rail three opening switch alloy steel fork heart, including fork heart piece, fork heart rim groove has been seted up above the fork heart piece, the fork heart track includes sharp rim groove, curve rim groove one and curve rim groove two, three opening switch are asymmetric structure, curve rim groove two with a curve rim groove front end is located straight line rim groove is on one side, curve rim groove two with a curve rim groove intersect in fork heart piece front portion forms first fork heart part, curve rim groove one with sharp rim groove intersect in fork heart piece rear portion forms second fork heart part. The utility model discloses can arrange three throw switch fork cores in a flexible way to the actual conditions, advantages such as the wearability is good, long service life, machining precision height have saved the high cost of development casting mould simultaneously.
Description
Technical Field
The utility model belongs to the track field, concretely relates to asymmetric welded type of I-shaped rail three throw switch alloy steel fork heart.
Background
In the field of railway tracks, a switch is a connection device for switching a vehicle from one track to another, usually laid in large numbers in parking lots of vehicles, vehicle sections. The three-throw turnout is a more complex turnout structure form and has the unique characteristic of opening and closing in three directions. When the turnouts are arranged in the marshalling station and the freight yard, due to the limitation of terrain, enough space is not available for laying a plurality of groups of single turnouts to meet the requirement, and the superiority of the single turnout is highlighted at the moment. At present, most of marshalling stations and goods yards in China are laid with symmetrical three-throw turnouts, fork centers are of a high manganese steel integral casting type, the arrangement form is single, the flexibility is poor, and the actual requirements cannot be effectively met. In the prior art, although asymmetric three-throw turnouts are adopted, fork centers are combined by alloy steel. The combined type fork core has more parts, so the damage is more prominent, the integrity of the combined type alloy steel frog is poorer, and the daily maintenance work is heavier.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an asymmetric welded formula of I-shaped rail alloy steel fork center of three throw switches to it is relatively poor to solve among the prior art asymmetric three throw switches wholeness, and daily maintenance work is comparatively heavy, and the more problem of breaking down easily of component.
The asymmetric welding formula of I-shaped rail alloy steel fork center of three divisions, including the fork heart piece, fork heart rim groove has been seted up above the fork heart piece, the fork heart track includes straight line rim groove, curve rim groove one and curve rim groove two, three divisions of switch are asymmetric structure, curve rim groove two with a curve rim groove front end is located straight line rim groove is with one side, curve rim groove two with a curve rim groove intersect in fork heart piece front portion forms first fork heart part, curve rim groove one with straight line rim groove intersect in fork heart piece rear portion forms second fork heart part.
Preferably, the fork center rim groove comprises a first transition section, a second transition section and a fork center avoiding section from the end part to the fork center tip end in sequence, the width of the first transition section is gradually reduced from the end part to the second transition section, the second transition section is gradually reduced to the fork center avoiding section, and the fork center avoiding section is gradually increased to the fork center tip end until the fork center tip end.
Preferably, the inner side surfaces of the first transition section and the second transition section, which are close to the fork center, are consistent with the extending direction of the track, the inner side surfaces of the first transition section and the second transition section, which are far away from the fork center, incline towards one side of the fork center to reduce the width of the rim groove, and the inner side surfaces of the fork center avoiding sections, which are close to the fork center, incline towards one side of the fork center to increase the width of the rim groove.
Preferably, fork heart rim groove end width is 85mm, first transition section groove width reduces gradually to 70mm, second transition section groove width reduces gradually to 46mm, the groove width of section is dodged to the fork heart increases gradually to 48mm, the most advanced terminal surface width of fork heart is 6 mm.
Preferably, the length of the first transition section is 150mm, the length of the fork center avoiding section is 200mm, and the two sections belong to the second transition section.
Preferably, the front part of one side of the fork core block is provided with a first gap, the rear part of the other side of the fork core block is provided with a second gap, the front end of the linear wheel rim groove extends to the end face of the first gap, and the rear end of the curved wheel rim groove extends to the end face of the second gap.
Preferably, the two ends of the fork core block are welded with a first curved I-shaped rail extending along the first curved rim groove, the front end of the fork core block and the two end faces of the notch are welded with a second curved I-shaped rail extending along the second curved rim groove, and the rear end of the notch is welded with a linear I-shaped rail extending along the linear rim groove.
Preferably, the fork core piece includes superstructure and understructure, straight line rim groove curve rim groove one with curve rim groove two is seted up on the superstructure, the superstructure is the NM400 steel sheet, the understructure is the Q345 steel sheet, superstructure welded fastening is in on the understructure.
Preferably, the front end of the fork core block is provided with a fork core opening, the fork core opening is communicated with the center of the first fork core part, two sides of the fork core opening are provided with wing rails, and the center of the fork core opening is not provided with a fork core tip.
The utility model has the advantages that:
1. the fork core is of an integral structure, the daily maintenance work is very simple, the three-throw turnout fork core is not prone to failure, the three-throw turnout fork core can be flexibly arranged according to the practical situation, the wear resistance is good, the service life is long, the machining precision is high, the high cost of developing a casting die is saved, the installation and maintenance are very convenient due to the fact that the number of components is very small, and the probability of failure of the part is reduced.
2. The groove width through first changeover portion, second changeover portion in each rim groove constantly reduces in this scheme, and this has reduced the wheel and has rocked, guarantees wing rail and wheel stationary contact, makes the train move more stably in fork center department. The fork center avoiding section can prevent the wheel from colliding when entering.
3. Firstly, a fork core block is formed by welding NM400 and Q345 materials, and then the fork core block and an I-shaped rail are welded together. The wholeness is better, and the machining precision is higher to can mostly adopt the lower steel of price in the material, reduce the cost, later stage build-up welding maintenance is comparatively convenient.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a three-throw turnout using the utility model;
FIG. 3 is a partial block diagram of the fork rim groove from end to tip of the fork in the configuration of FIG. 1.
The reference numbers in the figures are: 1. the fork center block 2, the linear wheel edge groove 3, the curved wheel edge groove I, the curved wheel edge groove II, the curved wheel edge groove 5, the linear I-shaped rail 6, the curved I-shaped rail I, the curved I-shaped rail II, the curved I-shaped rail 8, the first transition section 9, the second transition section 10, the fork center avoiding section 11, the fork center tip 12 and the fork center opening.
Detailed Description
The following detailed description of the embodiments of the present invention will be provided to help those skilled in the art to more fully, accurately and deeply understand the concept and technical solutions of the present invention, through the description of the embodiments with reference to the accompanying drawings.
Example 1:
as shown in fig. 1-3, the utility model provides an asymmetric welding formula of I-shaped rail three throw switch alloy steel fork heart, including fork heart piece 1, fork heart rim groove has been seted up above the fork heart piece 1, the fork heart track includes sharp rim groove 2, curved wheel rim groove 3 and curved wheel rim groove two 4, three throw switches are asymmetric structure, curved wheel rim groove two 4 with curved wheel rim groove 3 front end is located sharp rim groove 2 is with one side, curved wheel rim groove two 4 with curved wheel rim groove 3 intersect in fork heart piece 1 front portion forms first fork heart part, curved wheel rim groove one 3 with straight wheel rim groove 2 intersect in fork heart piece 1 rear portion forms second fork heart part. The structure can be applied to the fork centers of various asymmetric three-throw turnouts, has good integrity, only has one fork center block in the number of components, has higher strength and is easy to maintain.
Fork heart rim groove is from tip to fork heart point 11 including first changeover portion 8, second changeover portion 9 and fork heart in proper order dodge section 10, the width of first changeover portion 8 from the tip to 9 directions of second changeover portion reduce gradually, 9 directions of second changeover portion 10 directions reduce gradually to the fork heart, 10 directions of fork heart dodge section gradually increase until fork heart point 11.
The inner side surfaces of the first transition section 8 and the second transition section 9, which are close to the fork center, are consistent with the extending direction of the track, the inner side surfaces of the first transition section 8 and the second transition section 9, which are far away from the fork center, are inclined towards one side of the fork center to reduce the width of the rim groove, and the inner side surfaces of the fork center avoiding section 10, which are close to the fork center, are inclined towards one side of the fork center to increase the width of the rim groove. The inner side surface of the fork center rim groove far away from the fork center is a working edge, the groove width of the fork center rim groove is reduced through the inclination of the side surface, the restraint on the wheel rim can be increased, the transverse moving range of the wheel is reduced, and the problem that the wheel transversely moves to collide with the fork center tip 12 is prevented to a certain degree. The fork-avoiding section 10 prevents the wheel rim from colliding with the fork tip 12 by reducing the width of the end surface of the fork tip 12.
Fork heart rim groove end portion width is 85mm, 8 groove widths of first changeover portion gradually reduce to 70mm, 9 groove widths of second changeover portion gradually reduce to 46mm, the groove width of section 10 is dodged to the fork heart gradually increases to 48mm, the most advanced 11 terminal surface width of fork heart is 6 mm. The length of the first transition section 8 is 150mm, the length of the fork center avoiding section 10 is 200mm, and the two sections belong to the second transition section 9. The slope and shape of the first transition section 8 correspond to the shape of the corresponding guard rail transition section, so that the two working edges are symmetrical, and the slope and shape of the second transition section correspond to the shape of the guard rail. The structure of fork center rim groove and guardrail cooperation can prevent that the wheel from taking place big skew like this, effectively retrain the movement track of wheel, make the wheel pass through harmful space safely.
The front part of one side of the fork core block 1 is provided with a first gap, the rear part of the other side of the fork core block is provided with a second gap, the front end of the linear wheel rim groove 2 extends to the end surface of the first gap, and the rear end of the curved wheel rim groove 4 extends to the end surface of the second gap. The notch is arranged, the steel consumption of the fork core block 1 is reduced, the end faces of the notch I and the notch II are perpendicular to the corresponding fork core wheel edge grooves, and the corresponding I-shaped rails are conveniently subjected to positioning welding of the corresponding end parts.
The welding of 1 both ends of fork heart piece has along curve I-shaped rail 6 that curve rim groove 3 extends, fork heart piece 1 front end with the welding of breach terminal surface has along curve I-shaped rail two 7 that curve rim groove two 4 extend, a breach terminal surface with the welding of 1 rear end of fork heart piece has along straight line I-shaped rail 5 that straight line rim groove 2 extends.
Fork heart piece 1 includes superstructure and understructure, straight line rim groove 2 curve rim groove one 3 with curve rim groove two 4 are seted up superstructure is last, the superstructure is NM400 steel sheet, the understructure is the Q345 steel sheet, superstructure welded fastening is in understructure is last.
The front end of the fork core block 1 is provided with a fork core opening 12, the fork core opening 12 is communicated with the center of the first fork core part, two sides of the fork core opening 12 are provided with wing rails, and the center of the fork core opening is provided with no center rail. Because the front end of the fork core block 1 is welded with the switch rail part, a train enters the fork core opening 12 after turning at the switch rail, and the guide effect on the wheel cannot be improved without arranging the fork core tip 11, but the wheel is prevented from colliding with the switch rail at the fork core opening.
The utility model discloses a principle and course of working do, at first carry out the machine tooling to NM400 steel sheet, mill out corresponding sharp wheel reason groove 2, curve wheel reason groove one 3 and curve wheel reason groove two 4 above that, then adopt the wear-resisting solder of high strength to weld NM400 steel sheet to the Q345 steel sheet as bottom basic unit. And then, the fork center block is transferred to a three-throw turnout site, laid at a set position, and then the first curved I-shaped rail 6 is welded to the positions, far away from the fork center, of the two ends of the first curved wheel edge groove 3 respectively, so that smooth transition connection of a working edge is realized. And a second curved I-shaped rail 7 is welded at two ends of the second curved wheel edge groove 4 in the same way, and a linear I-shaped rail 5 is welded at two ends of the linear wheel edge groove 2.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is made for the exemplary purposes with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various insubstantial improvements can be made without modification to the present invention.
Claims (9)
1. The utility model provides an asymmetric welded formula of I-shaped rail alloy steel fork heart of three switches which characterized in that: including fork heart piece (1), fork heart rim groove has been seted up above fork heart piece (1), fork heart track includes straight line rim groove (2), curve rim groove (3) and curve rim groove two (4), three throw turnouts are asymmetric structure, curve rim groove two (4) with curve rim groove (3) front end is located straight line rim groove (2) is with one side, curve rim groove two (4) with curve rim groove (3) intersect in fork heart piece (1) front portion forms first fork heart part, curve rim groove (3) with straight line rim groove (2) intersect in fork heart piece (1) rear portion forms second fork heart part.
2. The asymmetric welded type three-throw turnout alloy steel fork center of the I-shaped rail according to claim 1, which is characterized in that: fork heart rim groove dodges section (10) including first changeover portion (8), second changeover portion (9) and fork heart in proper order from tip to fork heart point (11), the width of first changeover portion (8) from the tip to second changeover portion (9) direction reduces gradually, second changeover portion (9) to the fork heart dodges section (10) direction and reduces gradually, the fork heart dodges section (10) to fork heart point (11) direction crescent until fork heart point (11).
3. The asymmetric welded type three-throw turnout alloy steel fork center of the I-shaped rail according to claim 2, characterized in that: first changeover portion (8) with the second changeover portion (9) two medial surface that is close to the fork center with the track extending direction is unanimous, first changeover portion (8) with the inside surface that the fork center was kept away from to second changeover portion (9) two reduces rim groove width towards fork center one side slope, the fork center dodges section (10) and is close to the inside surface of fork center and increases rim groove width towards fork center one side slope.
4. The asymmetric welded type three-throw turnout alloy steel fork center of the I-shaped rail according to claim 3, characterized in that: fork heart rim groove end width is 85mm, first changeover portion (8) groove width reduces gradually to 70mm, second changeover portion (9) groove width reduces gradually to 46mm, the groove width of section (10) is dodged to the fork heart increases gradually to 48mm, the most advanced (11) end face width of fork heart is 6 mm.
5. The asymmetric welded type three-throw turnout alloy steel fork center of the I-shaped rail according to claim 4, which is characterized in that: the length of the first transition section (8) is 150mm, the length of the fork center avoiding section (10) is 200mm, and the parts between the first transition section and the fork center avoiding section belong to the second transition section (9).
6. The asymmetric welded type three-throw turnout alloy steel fork center of the I-shaped rail according to claim 1, which is characterized in that: the front part of one side of the fork core block (1) is provided with a first notch, the rear part of the other side of the fork core block is provided with a second notch, the front end of the linear wheel rim groove (2) extends to the end surface of the first notch, and the rear end of the curved wheel rim groove (4) extends to the end surface of the second notch.
7. The asymmetric welded type three-throw turnout alloy steel fork center of the I-shaped rail according to claim 6, characterized in that: fork heart piece (1) both ends welding has the edge curve I-shaped rail (6) that curve rim groove (3) extend, fork heart piece (1) front end with the welding of breach terminal surface has curve I-shaped rail two (7) that extend along curve rim groove two (4), a breach terminal surface with fork heart piece (1) rear end welding has the edge straight line I-shaped rail (5) that straight line rim groove (2) extend.
8. The asymmetric welded type three-throw turnout alloy steel fork center of the I-shaped rail according to claim 1, which is characterized in that: fork heart piece (1) includes superstructure and understructure, straight line rim groove (2) curve rim groove (3) with curve rim groove two (4) are seted up superstructure is last, superstructure is NM400 steel sheet, understructure is the Q345 steel sheet, superstructure welded fastening is in understructure is last.
9. The asymmetric welded type three-throw turnout alloy steel fork center of the I-shaped rail according to claim 1, which is characterized in that: the front end of the fork center block (1) is provided with a fork center opening (12), the fork center opening (12) is communicated with the center of the first fork center part, and two sides of the fork center opening (12) are provided with wing rails and the center is provided with no center rail.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920949853.8U CN210262509U (en) | 2019-06-24 | 2019-06-24 | Asymmetric welding formula of I-shaped rail three throw switch alloy steel fork heart |
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| CN201920949853.8U CN210262509U (en) | 2019-06-24 | 2019-06-24 | Asymmetric welding formula of I-shaped rail three throw switch alloy steel fork heart |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258194A (en) * | 2019-06-24 | 2019-09-20 | 芜湖中铁科吉富轨道有限公司 | A kind of asymmetric welded type three-throw turnout alloy steel fork heart of I-rail |
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- 2019-06-24 CN CN201920949853.8U patent/CN210262509U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258194A (en) * | 2019-06-24 | 2019-09-20 | 芜湖中铁科吉富轨道有限公司 | A kind of asymmetric welded type three-throw turnout alloy steel fork heart of I-rail |
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